Finding the Fourth Proportional to 818,475.42, 1,129,530.93 and 455,899.44
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Solution
The fourth proportional to 818,475.42, 1,129,530.93 and 455,899.44 is: 629,160.64
Step by Step Solution
- Step 1: Write the proportion equation
818,475.42 : 1,129,530.93 = 455,899.44 : x - Step 2: Convert to fraction form
818,475.42/1,129,530.93 = 455,899.44/x - Step 3: Cross multiply
818,475.42x = 1,129,530.93 × 455,899.44 - Step 4: Simplify right side
818,475.42x = 514,952,523,540.23 - Step 5: Solve for x
x = 514,952,523,540.23/818,475.42 - Step 6: Final answer
x = 629,160.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.